Improvement in side bearings for railroad-cars



. G. GA'ALLUWAY.

Side-Bearings fior Railroad-Cats.

' Patented Oct. 5, `1875.

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vGEORGE GALLOWAY, OF BUFFALO, NEW YORK, ASSIGNOR OF ONE-HALF HIS RIGHTTO PHILLIP STELLWAGEN, WILLIAM MILLER, AND MICHAEL J. STARK, OF SAMEPLAGE.

IMPROVEMENT lN SIDE BEARINGS FOR RAILROAD-CARS.

Specification forming part of Letters Patent No. 168,476, dated October5, 1875 application filed March 26, 1875.

To all whom vit may concern: n

Be it known that- I, GEORGE GALLOWAY, of the city of Buffalo, in thecounty of Erie and State of New York, have invented an Improved SideBearing for Railway-Gars; and I do hereby declare that the following isa full, clear, and exact description of the same, having reference tothe accompanying drawings, in Which- Figure l is an elevation of afragment of a car-truck and railway-car, showing my improved sidebearing in its proper position. Fig. 2 is a plan view of the chair andwheels; Fig. 3, a plan view of the bearingplate, and Fig. 4 an end viewof the side bearing complete.

Like letters of reference indicate like parts in the various figures.

The nature of this invention relates to improvements on side bearingsfor railroad-cars; and it consists in the arrangement land details ofconstruction, as hereinafter fully set forth, and pointed out in theclaim.

A is the chair of my improved side bearing. It is constructed of anysuitable material, cast-iron being preferable, and consists of the twoparallel sides B' B and B B, arranged at an obtuse angle to one another,in such a manner that they are at right angles with aline drawn throughthe center of the truck and the wheels D of the chairs A. C aresemicircular eXcisions in the chair, and serve as bearings for thepivots of the wheels D. The double chair, as described, I produce of asingle piece, in the process of casting or forging, and is thereforeless costly than any other device of a similar nature. I arrange two ofthese chairs upon the bolster of each truck, at any point convenientfrom the kingbolt, and provide them with Wheels D, having pivots Eformed in one piece with the Wheel D. The faces of these wheels areeither parallel, or slightly beveled to an angle of about two degrees,and bear against a curved top plate, F, having a parallel or slight- 1ytapering cross-section, and being provided with lugs G, whereby it isattached to the bottom of the car by means of bolts, or the like.

The wheels D are loosely set into the chair but, if found necessary, astrap or cap may be put over the bearings to prevent the displacing ofthe Wheels in case of accident, &c.

In constructing side bearings, as described, I derive results thatcannot be obtained by any other mode of construction with which I amacquainted, and which may be stated to be as follows, to Wit: First, inmaking the sides of each set of bearings parallel, and arranging the twosets of each chair at an obtuse angle to one another, in such a mannerthat each set of sides is at right angles to a line drawn. through thecenter of thewheels and the king-bolt of the truck, I am enabled to tthe Wheels snugly within the chair, so that the accumulation of grit anddirt is prevented Where it would impair the action of the said Wheels,and thereby' cause undue strain and friction, and the abrasion of therollers,

which would thus' be rendered useless. Second, by arranging a wheel ateach edge of the bolster in each chair, the Weight of the car is moreequally distributed upon the car-sprin gs, allowing the center plate toWork freely and prevent the inclining of the bolster, caused by theunequal strength of these car-springs.

Having thus fully described my invention, in order to enable any oneskilled in the arts to which it pertains to make anduse the same, Idesire to secure by Letters Patent the following claim:

A double chair, A', having its parallel sides B B and B Bf arranged atan obtuse angle with each other, and at right angles with a line throughthe center of the bearings and the king-bolt of the truck, and providedwith semicircnlar excisions O, serving as bearings for the pivots of theWheels, all substantially as and for the purpose Vset forth.

This specification subscribed this Sth day of March, 1875.

GEO. GALLOWAY.

Witnesses:

MICHAEL J. STARK, J No. STARK.

